Post a Phone
It appears we are becoming more of a use-and-discard society than ever before with the use of a Post A Phone. Post A Phone is what the name implies, a phone that can be mailed to you when you're in a bind.
Actually, the name doesn't really imply that. Still, it is cheap, made of recycled cardboard, and only 4mm thick. It is made to fit in an ordinary A5 envelope. Unfortunately, it is not a cell phone, but has a cord to attach to a land line. This is assuming we still have landlines.
Via Ubergizmo
